when i bought my m1009 i started reading the forum here and read about runaway starters,i asked a buddy whos owned a few 1009s, said he never heard about relay problem..3 days later truck wouldnt start, and when i shut truck door the starter engaged,burned up fuseable link to starter was all the damage i saw, it was a brand new starter so i thought it was okay,so i fixed fuselink and put a new fact. relay in turned the key and smoked my interior wiring harness....i was so disapointed i almost scrapped the truck....and i do love this truck...IF I HAD DONE THE UPGRADE WHEN I READ ABOUT IT, IT WOULD HAVE SAVED ME ALOT OF MONEY, AND A GOOD DOSE OF SCOLDING FROM MY GF.IF YOU WAIT TIL YOU NEED TO DO IT ITS TO LATE....